Clay Tile Roof Cleaning in San Diego That Actually Delivers

Clay tile roofs are beautiful - but they're also a magnet for algae, lichen, and buildup that spreads quietly over time. Most homeowners don't notice how bad it's gotten until they really look. That white and gray spotting scattered across the tiles isn't just cosmetic - it's biological growth that holds moisture and can gradually work against the surface of the tile itself.

We tackled a roof exactly like that here. The tiles were covered in lichen colonies and algae patches that had clearly been sitting there for a while. Left alone, that kind of growth keeps spreading and can make an otherwise solid roof look neglected - and eventually cause real problems down the line.

For a roof like this, high pressure is off the table. Clay tiles are durable but they're not invincible, and blasting them with a pressure washer can crack, shift, or damage the surface. We use a soft wash approach instead - low pressure combined with a professional-grade cleaning solution that kills the growth at the root and lifts it cleanly off the tile. No cracked tiles, no water forced under the surface.

The difference is hard to miss. Every tile came out with that deep, rich terracotta color restored - uniform across the whole roof, no streaking, no residue. The kind of clean that makes the entire exterior of the home look sharper without touching anything else.

If your tile roof is starting to show spots, streaking, or that dull film that builds up over time, it's worth getting it looked at sooner rather than later. Staying ahead of that growth is a lot easier - and cheaper - than dealing with it after it's had years to take hold.